Collocations for unreasonable - adj.

appear, be, seem, sound
She did not want to appear unreasonable.

become, get
His demands were getting more and more unreasonable.

consider sth, find sb/sth, hold sth
(law),

judge sth
(law),

regard sth as, think sth
I find her a bit unreasonable at times. | This clause in the contract was held unreasonable.

extremely, grossly, very | completely, quite, totally, utterly, wholly | a bit | apparently

about
He was totally unreasonable about it.